navy reservist. police say they believe dorner is responsible for killing monica quan, the daughter of a retired lapd captain. >> she had such a big heart. why take her away from all of us? >> reporter: the 28-year-old beloved college basketball coach was gunned down sunday, along with her fiancee, keith lawrence, while they were sitting in his car. >> a particular interest at this point in the investigation, is a multipage manifesto, in which the suspect has implicated himself. >> reporter: the document, allegedly posted by dorner on an internet message board this week, blames retired lapd captain randy quan and other officers for getting him fired from the department. the manifesto claims that dorner was fired for repeated abuses. it names a dozen officers, threatening to find officers' homes, their spouses' workplaces and children's schools. one posting reads, i never had the opportunity to have a family of my own, dorner writes. i'm terminating yours. >> dorner's whereabouts are currently unknown